Re: [cdt-dev] DSF gdb: Unresolved breakpoint freezes application

[Axel Müller <aegges@xxxxxx>]

Wow, you're really fast Marc. I just wanted to apply your first patch but then  
my CVS update was faster! And the best thing: the bug is fixed. I just tried. 
Thanks a lot.

   Axel

> I've posted a prototype fix to the bug.  If you want to give it a spin. 
> But I do have to run more tests on it.
> 
> > The bug is much worse. It seems that whenever gdb gives an error DSF-GDB
> > does not recover. I just stumbled across this while stepping through
> > some code with Qt: 354,429 49-data-evaluate-expression --thread 1
> > --frame 0 QString 354,431 49^error,msg="cannot resolve overloaded method
> > `QString': no arguments supplied"
> 
> If you can still see the above with the patch I posted, pleasepost the full
> traces to the bug and how you got there. It must be that DSF-GDB was in a
> bad state because of the breakpoint problem, so the patch should fix this
> too.
> 
> Thanks
> 
> Marc
> ________________________________________
> From: cdt-dev-bounces@xxxxxxxxxxx [cdt-dev-bounces@xxxxxxxxxxx] On Behalf
> Of Axel Müller [aegges@xxxxxx] Sent: May 28, 2010 5:58 AM
> To: CDT General developers list.
> Subject: RE: [cdt-dev] DSF gdb: Unresolved breakpoint freezes application
> 
> The bug is much worse. It seems that whenever gdb gives an error DSF-GDB
> does not recover. I just stumbled across this while stepping through some
> code with Qt: 354,429 49-data-evaluate-expression --thread 1 --frame 0
> QString
> 354,431 49^error,msg="cannot resolve overloaded method `QString': no
> arguments supplied"
> 
> 
> After this nothing works anymore.
> 
>   Axel
> 
> >My fault.  When adding support for setting a breakpoint while the target
> >is running https://bugs.eclipse.org/bugs/show_bug.cgi?id=242943
> >
> >I forgot the fact that the breakpoint installation can 'fail' in cases
> >where the file is not part of the program, so DSF-GDB does not recover
> >
> >well.
> >
> >
> >
> >I'll post a fix to the bug you opened.
> >
> >
> >
> >Thanks for finding this.
> >
> >
> >
> >Marc
> >
> >
> >
> >
> >
> >________________________________________
> >
> >From: cdt-dev-bounces@xxxxxxxxxxx [cdt-dev-bounces@xxxxxxxxxxx] On Behalf
> >Of Axel Müller [aegges@xxxxxx]
> >
> >Sent: May 28, 2010 3:40 AM
> >
> >To: cdt-dev@xxxxxxxxxxx
> >
> >Subject: [cdt-dev] DSF gdb: Unresolved breakpoint freezes application
> >
> >
> >
> >Hi,
> >
> >
> >
> >I found IMHO a serious bug in the gdb backend of DSF (see
> >https://bugs.eclipse.org/bugs/show_bug.cgi?id=314628). When I create a
> >breakpoint in a source file that does not belong to the application that
> >is currently debugged gdb will report an error and remain in some kind of
> >freeze state. The application freezes as well.
> >
> >
> >
> >I have attached a simple test case projectto the bug report  to
> >demonstrate the bug. I would be happy if someone could have a look at it.
> >In my opinion this bug makes it impossible to debug more than one
> >application at once. A not uncommon scenario in Makefile projects.
> >
> >  Axel
> >
> >___________________________________________________________
> >
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> >
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> >
> >https://dev.eclipse.org/mailman/listinfo/cdt-dev354,429
> >49-data-evaluate-expression --thread 1 --frame 0 QString
> 
> 354,431 49^error,msg="cannot resolve overloaded method `QString': no
> arguments supplied"354,429 49-data-evaluate-expression --thread 1 --frame
> 0 QString 354,431 49^error,msg="cannot resolve overloaded method
> `QString': no arguments supplied" 354,429 49-data-evaluate-expression
> --thread 1 --frame 0 QString
> 354,431 49^error,msg="cannot resolve overloaded method `QString': no
> arguments supplied"
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